ICRC-1.did

type SubAccount = blob;

type TransferArgs = record {
    from_subaccount: opt SubAccount;
    to: text;
    amount: nat;
};

type TransferError = variant {
    // TODO
    GenericError: text;
};

service : {
    name: () -> (text) query;
    symbol: () -> (text) query;
    decimals: () -> (nat8) query;
    totalSupply: () -> (nat) query;
    balanceOf: (text) -> (nat) query;
    transfer: (TransferArgs) -> (variant { Ok: nat; Err: TransferError; });
}